ISO 3966:2020

Measurement of fluid flow in closed conduits — Velocity area method using Pitot static tubes

Publication date: Jul 20, 2020

General information

Current stage: 60.60 Effective date: Jul 20, 2020

Originator: ISO

Owner: ISO/TC 30/SC 5

Type: International Standard

ICS: 17.120.10

Languages: English French

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Status: Published

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Scope

This document specifies a method for the determination in a closed conduit of the volume rate of flow of a regular flow
a) of a fluid of substantially constant density or corresponding to a Mach number not exceeding 0,25,
b) with substantially uniform stagnation temperature across the measuring cross-section,
c) running full in the conduit, and
d) under steady flow conditions.
In particular, it deals with the technology and maintenance of Pitot static tubes, with the calculation of local velocities from measured differential pressures and with the computation of the flow rate by velocity integration.

Life cycle

PREVIOUSLY

Revises
ISO 3966:2008

NOW

PUBLISHED
ISO 3966:2020
60.60 Standard published
Jul 20, 2020

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